Mössbauer and EPR spectra for glasses and glass-ceramics prepared from simulated compositions of Lunar and Martian soils

Ray, Chandra S.; Reis, Signo Tadeu Dos; Pontuschka, W. M.; Yang, Jinbo; Sene, F.F.; Giehl, J.M.; Kim, C.W.; Sen, S.

doi:10.1016/j.jnoncrysol.2006.02.117

Cited by 13 publications

(14 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high field absorption line with g factor close to 2.0 is due to a ferromagnetic resonance of fine-grained precipitates of ferro-or ferromagnetic single domains encountered in fine-grained precipitates as for glasses matrices [29]. Other findings state that it is a signature of iron ions (e.g., Fe 2+ and Fe 3+ ) dimers or clusters at the interstitial positions [29].…”

Section: Epr Spectroscopymentioning

confidence: 91%

“…The low-field signal is very small and possesses g factor value close to 4.3, which is ascribed to a paramagnetic resonance of isolated Fe 3+ ions situated in tetrahedral FeO 4 and/or rhombically distorted octahedral FeO 6 sites [29,30]. The high field absorption line with g factor close to 2.0 is due to a ferromagnetic resonance of fine-grained precipitates of ferro-or ferromagnetic single domains encountered in fine-grained precipitates as for glasses matrices [29]. Other findings state that it is a signature of iron ions (e.g., Fe 2+ and Fe 3+ ) dimers or clusters at the interstitial positions [29].…”

Section: Epr Spectroscopymentioning

confidence: 99%

See 1 more Smart Citation

Catalytic performance of MnFeSi composite in selective oxidation of styrene, ethylbenzene and benzyl alcohol

Oliveira

Gomes

Neto

et al. 2017

Molecular Catalysis

View full text Add to dashboard Cite

Section: Epr Spectroscopymentioning

confidence: 91%

Section: Epr Spectroscopymentioning

confidence: 99%

Catalytic performance of MnFeSi composite in selective oxidation of styrene, ethylbenzene and benzyl alcohol

Oliveira

Gomes

Neto

et al. 2017

Molecular Catalysis

View full text Add to dashboard Cite

“…The authors hypothesize that the increase of Silicon was due to the formation of glasses, based on the glass formation under rapid cooling rates (Ray et al, 2006) that can occur during laser processing. Also, based on similar results it is suggested that vaporisation due to the relatively low melting temperatures was the main reason for the decrease of Sodium (883 °C) and Potassium (774 °C).…”

Section: Figure 5 -Various Geometrical Shapes Manufactured Using An Ementioning

confidence: 99%

3D printing with moondust

Goulas

Friel

2016

RPJ

View full text Add to dashboard Cite

Purpose -The purpose of this paper is to investigate the effect of the main process parameters of Laser Melting (LM) type Additive Manufacturing (AM) on multi layered structures manufactured from JSC-1A Lunar regolith (Moondust) simulant powder.Design/methodology/approach -Laser diffraction technology was used to analyse and confirm the simulant powder material particle sizes and distribution. Geometrical shapes were then manufactured on a Realizer SLM™ 100 using the simulant powder. The laserprocessed samples were analysed via Scanning Electron Microscopy (SEM) to evaluate surface and internal morphologies, Energy-dispersive X-ray Spectroscopy (EDS) to analyse the chemical composition after processing and the samples were mechanically investigated via Vickers micro-hardness testing.Findings -A combination of process parameters resulting in an energy density value of 1.011 J/mm 2 allowed the successful production of components directly from Lunar regolithsimulant. An internal relative porosity of 40.8 %, material hardness of 670 ± 11 HV and a dimensional accuracy of 99.8 % were observed in the fabricated samples. Originality/value -This research paper is investigating the novel application of a PowderBed Fusion AM process category as a potential on-site manufacturing approach for manufacturing structures/components out of Lunar regolith (Moondust). It was shown that this AM process category has the capability to directly manufacture multi-layered parts out of Lunar regolith, which has potential applicability to future moon colonization.

show abstract

“…The glass formation tendency of melts from the JSC-1 and JSC-1A lunar soil simulants and characterization of the glasses prepared from these simulants using X-ray diffraction analysis (XRD), differential thermal and thermo-gravimetric analysis (DTA/TGA), scanning electron microscopy (SEM), chemical analysis for composition by inductively coupled plasma atomic absorption spectroscopy (ICP-AES), EPR and Mössbauer spectroscopy have been reported previously [9,10]. The present work which is an extension of the previous work [9,10], reports measurements of selected important properties, namely, thermal diffusivity (α), thermal conductivity (K), and heat capacity (C) for the glass prepared from JSC-1A lunar soil simulant, so as to make the property data base for this important glass broader and comprehensive.…”

Section: Introductionmentioning

confidence: 94%

“…The present work which is an extension of the previous work [9,10], reports measurements of selected important properties, namely, thermal diffusivity (α), thermal conductivity (K), and heat capacity (C) for the glass prepared from JSC-1A lunar soil simulant, so as to make the property data base for this important glass broader and comprehensive. These properties are important to understanding the response and behavior of materials that undergo adverse thermal cycling, such as what is experienced by the surface of the Moon.…”

Section: Introductionmentioning

confidence: 94%

Thermal characterization of glasses prepared from simulated compositions of lunar soil JSC-1A

Pinheiro

Costa

Bell

et al. 2013

Journal of Non-Crystalline Solids

Self Cite

View full text Add to dashboard Cite

The thermal conductivity (K), thermal diffusivity (α), and specific heat capacity (ρc) for a glass prepared from JSC-1A lunar soil simulant were measured using a combination of open photoacoustic cell (OPC) and thermal relaxation techniques. The values of K and α for the JSC-1A glass were (20 ± 3) mW/cmK and (14 ± 2) cm 2 /s, respectively, and are somewhat larger than those of the comparable silicate glasses. The specific heat capacity (ρc) for this glass was (1.44 ± 0.07) J/cm 3 K, which is a little smaller than the comparable silicate glasses. Materials with high values of K and α rapidly adjust their temperature with that of their surrounding atmosphere, making them more resistant to mechanical failure occurring due to thermal shock.

show abstract

Mössbauer and EPR spectra for glasses and glass-ceramics prepared from simulated compositions of Lunar and Martian soils

Cited by 13 publications

References 13 publications

Catalytic performance of MnFeSi composite in selective oxidation of styrene, ethylbenzene and benzyl alcohol

Catalytic performance of MnFeSi composite in selective oxidation of styrene, ethylbenzene and benzyl alcohol

3D printing with moondust

Thermal characterization of glasses prepared from simulated compositions of lunar soil JSC-1A

Contact Info

Product

Resources

About